Cavity well system

Methods and systems for accessing a subterranean zone (12), such as a coal seam, are disclosed. The method includes forming a first bore (14) from a land surface (16) and forming a subterranean cavity (18) in the bore; forming an articulated bore (20) extending from the surface to proximate the subt...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PRATT, CHRISTOPHER A, SEAMS, DOUGLAS P
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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